TRENTON — A federal judge has ordered Clifton-based Butterfly Bakery and its president, Brenda Isaac, to shut down for illegally distributing food such as muffins and snack cakes with inaccurate labels, federal authorities said today.

Laboratory tests over several years showed foods labeled as "sugar free" contained sugar, the U.S. Food and Drug Administration said in a news release. Tests found products contained as much as three times the amount of sugar as indicated on the label, two times the amount of fat and two times the amount of saturated fat.

U.S. District Judge Dennis Cavanaugh signed a consent decree between the FDA and the bakery March 5. Under the decree, the bakery can only reopen once it complies with federal law, and the FDA may assess damages against the company for future violations. The bakery's website said its products are sold in supermarkets and specialty stores across the country.

A warning letter to the company sent in 2011 also said some products failed to declare all major food allergens, such as milk, in certain products. In a news release issued that year, the company said it had improved its labeling, re-tested products in question and implemented "double testing" to make sure nutritional information was correct.

“We apologize to our customers for the labeling error," the company said in the release. "Their satisfaction is our primary concern."

A woman who answered the phone at the bakery referred comment to Isaac, but said she was unavailable. She did not immediately return a message for comment.